Home / 138,236,792.67-190,764,836.64-75,512,145.51

Finding the Fourth Proportional to 138,236,792.67, 190,764,836.64 and 75,512,145.51

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Solution

The fourth proportional to 138,236,792.67, 190,764,836.64 and 75,512,145.51 is: 104,205,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,236,792.67 : 190,764,836.64 = 75,512,145.51 : x
  2. Step 2: Convert to fraction form
    138,236,792.67/190,764,836.64 = 75,512,145.51/x
  3. Step 3: Cross multiply
    138,236,792.67x = 190,764,836.64 × 75,512,145.51
  4. Step 4: Simplify right side
    138,236,792.67x = 14,405,062,102,551,060
  5. Step 5: Solve for x
    x = 14,405,062,102,551,060/138,236,792.67
  6. Step 6: Final answer
    x = 104,205,702.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.